bemis
join:2008-07-18
Reading, MA Reviews:
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 ·Verizon FiOS
| reply to bemis
Re: Sump pump w/ battery backup One thing to add... since the marine batteries are flooded cell or whatever it's called, you need to charge them outside! I charge mine after each use using a regular car battery charger. If it's been a few months, or a storm is coming, I'll put it on the charger before hand (the charger I have is automatic, so it monitors the voltage level and decides when the battery is fully charged, if the battery has been sitting 6-8 months it usually tells me it's "90%" charged when I start, and at a 5A rate it will claim fully charged within an hour.
If you wanted a less messy setup you could spend the cash on a large expensive AGM sealed battery, you could charge that one indoors. |
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garys_2kPremium
join:2004-05-07
Farmington, MI | I'd definitely test that battery/inverter system with the pump to at least make sure the motor inrush won't kick the inverter off line. |
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bemis
join:2008-07-18
Reading, MA Reviews:
·Comcast
·Verizon FiOS
| said by garys_2k:I'd definitely test that battery/inverter system with the pump to at least make sure the motor inrush won't kick the inverter off line.
Very good point--in fact I do know that my particular setup works because I tested it when it was new, though I only tested with a single pump starting, so might not be a bad idea to only plug one of my pumps in just in case.
Larger inverter is certainly better too. I bought this one to double running a table saw, it's 1500W continuous and I think 2500W continuous. |
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